Brush.



16.740,696. f I `PATENTE);'01111.v6',1903, J. P. RUNKLE'.

BRUSH,

APPLIGATIOH FILED 001215, 1901. n

N0 MODEL.

1 nl j v li --r1 l.

j PATENT Patented october e, ieee.

Feroe.

JOHN FRANK RUNKLE, OF VVOOSTER, OHIO, ASSIGNOR OF ONE-HALF TO E. P. FRINK, OF SEATTLE, WASHINGTON.

BRUSH.

SPECIFICATION forming part of Letters I-atent No. 740,696, dated October 6, 1903.

Application tiled October 15, 1901i Serial No. 78,697. (No model.)

The object ofthe present invention is tov improve the construction of brushes and to provide an exceedingly simple and inexpensive one of great strength and durability in which the bristles willA be firmly supported without interfering with the elasticity of the f same.

A Afurther object of the invention is to provide a brush of this character'provided with an interiorly-arranged support embracing the invention consists in the novell constructionA -and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the claims hereto appended, it being understood that changes in the form, proportion, and` minor details of construction within the scope of the claims may be made Without departing from the spirit or sacrificing any ot the advantages of the invention.

In the drawings, Figure l is a side elevation of a brush constructed in accordance with this invention. Fig. 2 is a transverse sectional View on the line ne of Fig. l. Fig. 3 is a longitudinal sectional view. Fig. 4 is a sectional view on the line y y of Fig. l. Fig. isadetail perspective view of the brushhead. A

Like letters of reference designate corresponding parts in all the figures of the drawings.

A designates a brush-handle enlarged at its hase to form a brush-head A' to receive and support bristles Band BT The brushhead is extended at its base to form a projection C of approximately oblong shape, and the said projection C, which is formed integral with the brush-head, is of a length and width less than the same to provide an exterior shoulder A2. The oblong projection C is hollowed out to form an oblong socket d for the reception of the central mass of bristles B', which are embraced and supported at the sides and ends of the brush, as clearly illustrated in Figs. 2 and 3 of the drawings. The walls ot' the socket formed by the projection C are of uniform thickness and have oppositely-beveled outer edges to allow for the spread of the bristles on both sides of the walls of the socket. The ends c of the projection C are preferably rounded, as shown Yin Figs. 4 and 5.

YThe outer mass of bristles B, arranged'on the exterior of the projection C, have their upper ends fitted against aband or rib D, consisting ot a strip extending around the exterior of the brush-head and iitted against the exterior shoulder A2, as clearly shown in Fig. 2 of the drawings. The brush head and handle are preferablyl constructed of wood, and the rib or band D, which is also constructed of wood or other suitable material, may be secured to the brush-head in any desired manner.' The outer mass of bristles is embraced by and conned within an approximately oblong errule E, having its upper portion fitted against the exterior of the rib or band D and extending downward from the upper facethereof and terminating short of the lower or outer oppositely-beveled edges ot' the walls ot the socket. The walls formed by the projection extend outward beyond the lower or outer edges of the ferrule to receive the strain incident to bending or flexing the central mass of bristles and to relieve the outer ferrule of such strain, thereby greatly increasing the durability of the brush. The ferrule, which is preferably constructed of metal, is secured to the bruslrhead by means of laterally-disposed fastening devices e, extending through a central longitudinal series of perforations of the ferrule and having their inner portions passed through the walls of the socket and extended into the central mass of bristles. The fastening devices pass through the outer mass of bristles and also engage the inner central mass of bristles, and as they are embedded in and are connected with the walls of the interiorly-arranged supporting-socket the outer mass of IOC bristles is clamped firmly against such walls by the fastening devices, which draw the lower or outer portions of the ferrule inward, the inner or upper portions of the ferrule being fitted against the rib or band, as before described.

It will be seen that the brush is exceedingly simple and inexpensive in construction, that the inner or central mass of bristles is encompassed by the Walls of the interiorly-arranged supporting-socket, and that the said central mass of bristles is held against movement laterally or longitudinally of the socket. It Will also be clear that the fastening devices for securing the ferrule to the ,brushhead extend laterally through the bristles and engage the inner and outer 'bristles and the Walls of the socket and that as the fastening devices are mounted on the said walls the lower or outer portions of the ferrule are drawn inward and caused to firmly clamp the outer mass of bristles against the Walls of the interiorly-arranged socket. Furthermore, the walls of the interiorly-arranged supporting-socket are extended outward beyond the outer edges of the ferrule to relieve the latter of strain incident to flexing the bristles and that the outer edges of the walls are oppositely beveled to allow for the spread of the bristles.

What I claim is- 1. A brush comprising an approximately elliptical brush-head hollowed out to form a complete socket, an annular band secured to the exterior of the brush-head and entirely surrounding the same and carrying a projecting annular flange spaced from the walls of the socket and entirely surrounding the same, central and outer bristles arranged within the socket and in the space between the walls thereof andthe said flange, and an annular series of fastening devices arranged at intervals and extending through the flange and the walls of the socket and engaging both the inner and outer bristles, substantially as described.

2. A brush comprising an approximately elliptical. brush-head having an exterior annular shoulder and provided with an integral projection hollowed out to form a complete elliptical socket, an annular rib arranged on the exterior of the brush-head and entirely surrounding the same and fitting against the exterior shoulder thereof, a complete elliptical ferrule mounted on and carried by the rib and projecting therefrom to form a flange, said flange being spaced from the walls of the socket and terminating short of the lower edges thereof, central and outer bristles arranged in the socket and in the space between the saine and the flange and fastening devices passing through the ilange and the Walls of the socket and extending into the latter and engaging both the central and outer bristles, substantially as described. 

